With a few GroupBoxes in my UI, I'm modifying their HeaderTemplate to add icons in addition to the text caption. Here's my template:
<DataTemplate>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Image Source="/Resources/IDCard.png" />
<TextBlock Grid.Column="1" Text="{Binding}" VerticalAlignment="Center" />
</Grid>
</DataTemplate>
This works, however since I have got multiple GroupBoxes, I was thinking of a way to define this template in Window's Resources and then reference it in each GroupBox. How can I use ContentPresenter (or anything else for that matter) in place of <Image> control in the above template and then provide the actual content (icon) in each GroupBox separately?
Note: I'm looking for XAML-only solution.